Benjamin a



(No Model.) y B. A. NORWOOD. LASTING PINGHBRS.

No. 503,672. I

Patented Aug. 22, 1893.

IIIHIINIIIIIII TNEISEBEZ UNITED STATES PATENT OFFICE.

BENJAMIN A. NORWOOD, OF BOSTON, MASSACHUSETTS, ASSIGNOR, BY MESNEASSIGNMENTS, TO THE EUREKA PROCESS LASTING COMPANY, OF SAME PLACE.

LASTING-PINCHERS.`

SPECIFICATION forming part of Letters Patent No. 503,672, dated August22, 1893.

Application filed October 3, 1892. Serial No. 447,674. (No model.)

To all whom it may concern,.-

Beit known that I, BENJAMIN A. NoRWooD, of South Boston,in the county ofSuffolk and State of Massachusetts, have invented certain new and usefulImprovements in Lasting- Pinchers, of which the following is aspecification.

This invention relates to pinchers used in lasting boots and shoes, andit has for its object to provide a tool adapted particularly for use ina new process or method of lasting described in an application forLetters Patent of the United States, filed by me concurrently with this.,p

The invention consists in the improvements which I will now proceed todescribe and claim.

Of the accompanying drawings forming a part of this specification,Figure l represents a side elevation of my improved pinchers. Fig. 2represents atop view of lthe same. Fig. 3 represents an inverted planView with ,the operating handles or levers broken olf. Fig. 4 representsa section on line 4, 4 of Fig. 1. Fig. 5 represents a sectional view ofthe upper portion hereinafter explained. Fig. 6 represents a perspectiveview of the lower portion separated from the upper. Figs. 7 and 8represent detail views hereinafter explained.

The same letters of reference indicate the same parts in all thefigures.

In the drawings-a a represent the handles or levers by which the tool isoperated. The upper handle a has a segmental jawb formed on or attachedrigidly to said handle. Said jaw has its concave acting portion or facebeveled at b to present a support for a convex correspondingly beveledjaw c secured at c to the levero. which lever is pivoted at e to ears ec formed on the lever d so that when the jaw c is raised by thedepression of lever a an opening is created between the jaws to receivethe toe portion d of the upper of a boot or shoe as shown in Fig. 7,said toe portion being gripped between the jaws, the beveled form andcurvature ofthe latter corresponding to the toe piece before it isturned back over the inner sole as shown in Figs. 7 and 8.

The lever a has formed upon its under side a projection or fulcrum gwhich is adapted to bear upon the inner sole h of the lasted shoe 'L' asshown in Fig. 7, the arrangement being such that when the toe d of theupper has been gripped by the jaws, the projection can be used as afulcrum and the toe piece be drawn over the last by a depression of theupper handle, as will be readily understood by reference to Fig. 7. Theprojection or fulcrum g causes the jawsto grasp the interposed materialwhenever downward pressure is exerted in any way on the fulcrum, suchpressure causing the depression of the jaw c and an increase of itspressure toward the jaw b. It will be feasible therefore to dispensewith the rear or handle portion of the lever a. using only the handle a,but the tool is more conveniently operated when provided with bothhandles.

In the operation of my improved pinchers I provide a shoe t' lasted withthe toe piece d projecting as shown in Fig. 8, the curve of the jawsapproximating as nearly as practicable the curve of the projecting toepiece. The operator grasps the handle ot between the thumb and firstfinger of the right hand and presses the handle a downwardly with theremaining lingers, which action raises the jaw c until a sfticientopening between the jaws is provided to permit the insertion of the toepiece d. The operator then raises the handle .a bringing the jaw c downupon the toe piece at the same time resting the projection g upon thesole and pressing downwardly upon the upper handle, thus exerting a firmgrasp upon the interposed substance. The beveled acting faces of thejaws cause an equal bearing of both upon the toe piece and prevents vthelatter from cooking or wrinkling'durng the operation. i

The acting surfaces of the jaws maybe either smooth or corrugated. Insome cases it'will be desirable to corrugate the jaws to give them asufficiently firm grip on the leather.

I claiml. A pair of lasting convex jaw curved and beveled or undercut toconform to the inner surface of the projecting toe portion of apartially lasted upper, a concave jaw curved and beveled to conform tosaid convex jaw and to the outer surface pinchers, comprising a 9 IOC 5l i scavz jaw and movable in said concavity, and means for opening andclosing saidjaws, as set forth.

4. The combination of the lever q., the segmental j aw b formed thereon,the lever a. pivotall;7 connected with the lever @,vthe jawc ,pivoted tothe end of the lever a and adapted 4to be operated as described, and theprojection g formed on the under side of Athe lever a', as set -forth.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing Witnesses, this 29thv day of 3. A pair oflasting pinchers having a concave jaw depending from a head or holder,y

said jaw having a box-like concavity, a con- Vex jaw tting the curvatureof the concave D. LOU. BENJAMIN Witnesses: C. F. BROWN, M. W. JACKSON.-

September, o"

A. NORWOOD.

